Derivative instruments and hedging activities - Summary Of Notional Amounts Of Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Total forward contracts notional amount	$ 532,643	$ 383,288
British pound
Derivative [Line Items]
Total forward contracts notional amount	23,251	13,988
Chinese yuan
Derivative [Line Items]
Total forward contracts notional amount	57,943	32,970
Euro
Derivative [Line Items]
Total forward contracts notional amount	209,385	130,122
Hungarian forint
Derivative [Line Items]
Total forward contracts notional amount	89,962	95,228
Japanese yen
Derivative [Line Items]
Total forward contracts notional amount	83,503	53,527
Korean won
Derivative [Line Items]
Total forward contracts notional amount	26,918	24,728
Malaysian ringgit
Derivative [Line Items]
Total forward contracts notional amount	$ 41,681	$ 32,725